• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Broadleaf Weed Identification
Broadleaf Weed Identification

... That part of the stem from which leaves of branches arise OCREA A membranous sheath surrounding the stem at the point of attachment of the leaves in members of the smartweed family. OPPSITE LEAVES Leaves attached at the same node on opposite sides of stem. Leaves at same node are of similar size. OR ...
Woody Plants Database - Diervilla sessilifolia
Woody Plants Database - Diervilla sessilifolia

... Together with the closely related D. lonicera, this is a genus with very few current cultivars, but its adaptability to urban environments may mean that more varieties will be forthcoming. * See specific cultivar notes on next page. Ornamental Characteristics ...
Leaf Galls of Azaleas and Camellias
Leaf Galls of Azaleas and Camellias

... develops on the leaf surface and begins to produce spores, which make up the white powdery substance coating the galls. These spores are readily dispersed in air currents and by splashing water, and subsequent infection occurs only on young, tender growth. Later, as the leaves shrivel up, they dry o ...
vocabulary list
vocabulary list

... Calyx: The outer circle or first whorl of floral parts; collective term for all the sepals of the flower. Corolla: The collective name for all of the petals of a flower; inner perianth whorl. Cotyledon: The leaves (one in monocots and two in dicots) of an embryo that emerge when the seed germinates. ...
Ferns, Club Mosses, and Horsetails Guided Reading
Ferns, Club Mosses, and Horsetails Guided Reading

... 1.Accept any of the following: have vascular tissue, produce pollen, produce seeds, have leaves, stems, and roots 2.embryo, stored food, seed coat 3.Accept one of the following: captures the sun’s energy, carries out photosynthesis 4.a layer of cells that divides to produce new phloem and xylem 5.ro ...
Adaptation - Lycée Romain Rolland
Adaptation - Lycée Romain Rolland

... water when it is plentiful, ...
Plant Parts and their Functions
Plant Parts and their Functions

... • Photosynthesis-manufactures food in green plants which is the beginning of the food chain for all living things • Photosynthesis is the process by which carbon dioxide and water in the presence of light are converted to sugar and oxygen ...
Seedless Plants
Seedless Plants

...  Seedless vascular plants  Contain tissues to conduct water and food  Ferns ...
Document
Document

... mutation of the native species. Same mature size and bloom as the Eastern but leaves emerge in a shiny, rich maroon color producing a truly outstanding element for the landscape. Appalachian Red : Be one of the first to enjoy this new variety. Slightly smaller than the species but bloom is truly out ...
All plants don`t occur everywhere. Different plants
All plants don`t occur everywhere. Different plants

... ornamentals in the yard are often bred to have 'everlasting' leaves. This means they lose leaves year round and not all in one season (it also means our yards aren't quite so bare in the winter - they are also planted around the foundations of houses or in flowerbeds!) and bred to have fairly unifor ...
flowers
flowers

... PROTECT THEMSELVES FROM HERBIVORES ...
File - Ms. Poole`s Biology
File - Ms. Poole`s Biology

... • Increase in size and support-Evolution of xylem fortified with lignin • Method of reproduction without water-Evolution of pollen and pollination strategies. • Method of protecting embryo from dehydrationEvolution of the seed ...
Parts of the plant and their functions
Parts of the plant and their functions

... to fertilize flower – beginning of fruit and seed formation • Fruits and seed are attractive to birds who eat and spread seeds ...
Z Z  Plant
Z Z Plant

... Zamioculcas Zamiiofolia (Araceaea). This tropical plant is a native of eastern Africa. The plant has thick succulent stem with smooth, waxy, glossy leaves that usually grow to 16” to 32”. Its foliage grows from underground tubers that store water. Temperature: Average warmth 68˚ to 75˚ Light: Use lo ...
Indian Hawthorn Care Sheet
Indian Hawthorn Care Sheet

... younger leaves. These expand and on heavily diseased leaves, merge, forming large irregular blotches. Severe infections in the Indian Hawthorn may result in the early dropping of leaves. Remove leaves as soon as possible and improve airflow to stop spread of leaf spot . ...
Honors Biology Module 14
Honors Biology Module 14

... When you begin to study plants They have certain organs and tissues. They can be classified into two groups: 1. Vegetative organs: the parts of a plant (stems, roots and leaves) that are not involved in reproduction, 2. Reproductive plant organs: The parts of a plant (flowers, fruits and seeds) inv ...
Iris, Pale Yellow - MD of Wainwright
Iris, Pale Yellow - MD of Wainwright

... Iris, Pale Yellow Iris pseudacorus Iridaceae (Iris Family) ...
Key - Delaware Science Olympiad
Key - Delaware Science Olympiad

... • Simple leaf: is a leaf that is comprised of one leaflet with a petiole attaching it to the twig. At the base of the petiole will be a bud. An example would be red maple. • Compound leaf: is a leaf that is comprised of many leaflets with a petiole attaching it to the twig. If you trace back the ste ...
Virginia Waterleaf Hydrophyllum virginianum
Virginia Waterleaf Hydrophyllum virginianum

... Virginia Waterleaf Hydrophyllum virginianum ...
Virginia Waterleaf Information
Virginia Waterleaf Information

... Virginia Waterleaf Hydrophyllum virginianum ...
Plant Reproduction & Development
Plant Reproduction & Development

...  The root is protected by a root cap, which protects the apical meristem as the plant grows down into the soil ...
Vascular plants
Vascular plants

... Tracheophytes: The Vascular Plants ...
White Fringetree
White Fringetree

... Description: Large shrub or small tree, 15 - 20’ tall with equal spread. One of our more handsome native flowering plants. It is slow-growing and may take 2-3 years before blooming. The white, slightly fragrant flowers hang in a panicles just as the leaves are emerging in mid to late May giving the ...
Unit B. 3.0 Plant Physiology
Unit B. 3.0 Plant Physiology

... Dicots – plant stems have a phloem and xylem layer separated by cambium • Produce 2 seed leaves • Trees and many vegetables ...
13288_Rare_plants
13288_Rare_plants

... protected by the state. Japanese Borodatka is an elegant plant which can be 20-40 cm long. There are scale-like leaves at the bottom of the thin stem, above them there are two long (about 10 cm) lancet-shaped leaves. In July and August the Japanese borodatka blooms. A large pink flower with three bl ...
< 1 ... 302 303 304 305 306 307 308 309 310 ... 316 >

Leaf



A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report